Fawning-mill



J. E. RICE.

Grain Winnower.

Patented Feb. 1|, 1859.

rmrrn N FF J. E. RICE, OF ONEIDA, ILLINOIS.

FANNING-MILL.

To all whom it may concern:

Be it known that I, J. E. Bron, of Oneida, in the county of Knox andState of Illinois, have invented a new and Improved Fanning Mill orGrain IVinnowing Machine; and I do hereby declare the following is afull, clear, and exact description of the same, reference being had tothe annexed draw ings, making a part of this specification, in whichFigure 1, is a longitudinal vertical section of my invention taken inthe line as, 00, Fig. 3 Fig. 2, is also a longitudinal vertical sectionof ditto taken in the line 11 'y, Fig. 3. Fig. 4, is a horizontalsection of ditto taken in line a, a, Fig. 1.

Similar letters of reference indicate corresponding parts in the severalfigures.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A, represents the case of the machine which is constructed in the usualwayand B, is a shoe placed therein. The shoe B, is of the ordinary formand is supplied with the usual screens a, as shown clearly in Fig. 2.The back part of the shoe is attached at its upper part by a strap Z),to the case A,- and the front part of the shoe is supported by twoelastic rods 0, c, the lower ends of which are attached to the case A,as shown at (Z, see Fig. 2, in which one rod 0, is shown attached. Inthe end of the case A at the outer part of the shoe B, a small verticalshaft e, is placed. This shaft is provided with a crank f, which isconnected with the outer end of the shoe by a strap 9. The crank shaft0, is operated by a belt h, from the fan shaft 71/.

C, is a fan box which is placed at the end of the case A opposite to theend where the shoe B, is placed. This fan case is of the usualsemicylindrical form and has a longitudinal opening 2', in its frontside so as to admit a blast through the screens a, of the shoe B, seeFigs. 2 and 3. At one side of the fan box O a projecting chamber D isplaced and the front end of this chamber communicates with a verticalspout E, attached to the side of the case A, and with which spout ashort distance above its lower end a spout j, at the back and lower partof the shoe B, communicates as shown in Fig. 3. Within the spout E acurved plate F is placed the lower end of said plate being connectedwith the spout by a hinge or joint 70. To the upper end of the plate F arod Z, is attached said rod leaning down below F and connected to avertical slide m, which works by the side of a ledge 71., between thespout E and chamber D.

The bottom of the chamber D is made of double inclined form and anopening 0, is made at the angle said opening being pro vided with a door79. The lower part of the chamber D, communicates with one end of ahorizontal spout G which is placed below the fan box G, the opposite endof spout Gr communicates with the lower end of a vertical spout H, theupper end of which communicates with the fan box C, as shown at q, Figs.2 and 3. The upper part of the spout H, is provided with a door or slider shown in Fig. 3. I is the fan constructed in the usual way and placedin the box C.

The operation is as follows: Power is applied to the fan shaft h throughthe medium of multiplying gear .9, and the belt it, rotates the shaft 0;the crank f, of which communicates a sort of wabbling motion to the shoeB owing to its connection with the front part of the shoe and thesupporting of the same by the elastic rods 0, c, and strap 6. Thiswa-bbling shake motion causes the screens a, to act most efficiently,the grain as it passes through them being well distributed so that thewhole mass will be exposed to the action of the blast generated by thefan I coarse foreign substances separated from the grain and also fineseed, cockle, etc.-, which passes through the lower screen a, and isdischarged at a and also the principal of dustthe latter being drivenout by the blast from fan I. The grain passes from the shoe B into spoutj, and thence into spout E, where it is subjected to a second blast alsogenerated by the same fan I. This latter blast is a suction blast and itdraws the light imperfect grain into the chamber D, the light andimperfect grain falling through the opening 0. The capacity of thesuction blast to draw the light grain into the chamber D, may beincreased or diminished by regulating the height of the slide m, andthis effect may also be aided in being produced by the slide 1', theopening of which, to a greater or less degree, will proportionallyaffect the strength of the suction in E. It will be seen therefore thatthe light grain may be entirely sparated from the heavy or the betterportions of the light grain may be allowed to remain with the heavygrain, in fact the grain may be separated as clearly as may be desired.

5 By this invention it will also be seen that two difi'erent kinds ofgrain varying in specific gravity may be separated with the greatestfacility.

I do not claim broadly operating the shoe 10 B, by a crank but,

Having thus described my invention what 1 I claim as new and desire tosecure by Letters Patent is The arrangement and combination of thesuction chamber D, spouts E, (j), plate F, and shoe B, substantially asand for the purpose herein shown and described.

J. E. RICE.

Witnesses:

C. J. MERRIMAN, E. R. PRoUTY.

